Flight Ops Air Force Special Tactics operators communicate with a C-130 Hercules during Air Mobility Command’s Exercise, Mobility Guardian 21 at Alpena Combat Readiness Training Center, Mich., May 24, 2021. SHARE: Download: Full Size (4.05 MB) Credit: Air Force Tech. Sgt. Sandra Welch VIRIN: 210524-F-HF922-0424.JPG Photo Gallery